A refractometric-spectrophotometric method is proposed for routine analyses for vitamins A and E in oil solutions, which is 3-4 times less time-consuming than HPLC. The determination procedure includes measurements of the refractive index n D 20 of samples and optical density of their solutions in hexane at 325 nm.
Russian Journal of Applied Chemistry – Springer Journals
Published: Oct 13, 2004
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